Table 2: Repeatability of method. Ten biological replicates of human faecal
samples were divided in triplicates and analysed by solid phase micro-extraction
coupled to gas chromatography-mass spectrometry (SPME-GC-MS). The average
number of volatile organic compounds (VOCs) and the standard deviation
associated to each biological replicate is presented together with the number of
VOCs in every technical replicate and the percentage of compound abundances
showing a coefficient of variation (CV) smaller than 30%.